Application of stuffed screen pipe completion technology in N2 drilled wells

In view of the unique and complicated completion method for gas drilling, and high cost and low reliability of DDV and leakless inflatable screen pipe, the stuffed screen pipe with temporary plugging agent was developed autonomously. With this technology, the screen pipe was plugged with temporary plugging agent to be blank tubing in advance, and then slot or perforate holes on the pipe. After running the screen pipe downhole, the temporary plugging agent will be drilled, and then the formation will communicate with screen pipe. This technology was successfully used in the N2 drilled well which is Niuqi-1 Well in Santanghu Oil Field, the daily production rate after completion was 2.5×104 m3 which is 6 times more than offset wells. The low cost, low pollution and safer screen pipe designing method is an effective means for N2 drilled wells completion.